Tobacco flavoring and liquid application detection method, device and storage medium

Abstract

The present disclosure provides a method and device for detecting the application of liquid for tobacco flavoring and adding, a tobacco flavoring and adding device, and a storage medium, wherein the method comprises: obtaining multiple sets of liquid weight data during the process of adding and flavoring tobacco; wherein each set of liquid weight data includes at least one liquid collection data; obtaining multiple sets of corresponding liquid input weights based on the liquid collection data of the multiple sets of liquid weight data; calculating the liquid weight comparison verification accuracy based on the multiple sets of liquid input weights; and determining whether the liquid application ratio accuracy requirement is met based on the liquid weight comparison verification accuracy. The present disclosure can perform liquid application ratio accuracy detection on tobacco flavoring and adding production, can promptly determine whether the liquid application ratio accuracy is abnormal, can promptly adjust the liquid application ratio or perform fault detection on metering devices and valves, etc., can effectively monitor equipment or quality problems in the flavoring and adding process, and effectively ensure the process quality of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco equipment, and in particular to a method and device for detecting the application of a liquid for tobacco adding and flavoring, tobacco adding and flavoring equipment, and a storage medium. Background Art

[0002] Flavoring and feeding equipment is a crucial component of tobacco production lines. Through precise control of the liquid flow rate and excellent atomization, the liquid is evenly sprayed onto the tobacco material in the proportions required by the process recipe. Flavoring and feeding operations involve spraying the liquid onto tobacco leaves or cut tobacco in a uniform and stable manner, based on the incoming material flow rate, to meet the process requirements for tobacco production. This operation requires high precision, with an allowable error range of typically ±0.5%. Currently, mass flow meters collect real-time information on the liquid flow rate supplied to tobacco flavoring and feed, and control the liquid application ratio based on this information. However, if the mass flow meter itself exhibits deviations, this can lead to deviations in the liquid application ratio. These deviations can only be detected after the completion of production by verifying the liquid input and use. The feeding system of flavoring and feeding equipment contains numerous valves, and valve leaks can affect the accuracy of the liquid application ratio and cannot be detected in a timely manner. Summary of the Invention

[0003] In view of this, a technical problem to be solved by the present invention is to provide a method and device for detecting the application of liquid for tobacco adding and flavoring, tobacco adding and flavoring equipment, and a storage medium.

[0004] According to a first aspect of the present disclosure, a method for detecting the application of a liquid for tobacco flavoring and adding is provided, comprising: obtaining multiple sets of liquid weight data during tobacco flavoring and adding treatment; wherein each set of liquid weight data comprises at least one liquid collection data; the liquid collection data comprises: the weight of a first liquid supplied for tobacco flavoring and adding collected by a flow meter of a feeding system, and the weight of a second liquid remaining for tobacco flavoring and adding collected by a weighing device of the feeding system at the same time; obtaining the corresponding multiple sets of liquid input weights based on the liquid collection data of the multiple sets of liquid weight data; calculating the liquid weight comparison verification accuracy based on the multiple sets of liquid input weights; and determining whether the liquid application ratio accuracy requirement is met based on the liquid weight comparison verification accuracy.

[0005] Optionally, the acquiring of the multiple sets of feed liquid weight data includes: starting to acquire the multiple sets of feed liquid weight data when it is determined that the measured weight value of the flow meter reaches the feed liquid collection inspiration weight value.

[0006] Optionally, the liquid collection revelation weight value is determined based on the first liquid application ratio accuracy and the minimum resolution information of the weighing device.

[0007] Optionally, obtaining multiple sets of slurry weight data includes: obtaining the next set of slurry weight data when it is determined that the difference between the first collected slurry weight in a set of slurry weight data and the actual measured weight value of the flow meter is greater than the slurry collected weight difference.

[0008] Optionally, the weight difference of the collected slurry is determined based on the accuracy of the second slurry application ratio and the minimum resolution information of the weighing device.

[0009] Optionally, the slurry collection data based on the multiple groups of slurry weight data to obtain the corresponding multiple groups of slurry input weights includes: calculating the sum of the first slurry weight and the second slurry weight collected at the same time in each group of slurry weight data to obtain the corresponding group of slurry input weights.

[0010] Optionally, the number of slurry collection data in each group of slurry weight data is the same, and in each group of slurry weight data, the difference between the first slurry weight in one collected slurry collection data and the first slurry weight in the next collected slurry collection data is a preset weight interval difference.

[0011] Optionally, the calculation of the slurry weight comparison verification accuracy based on the multiple groups of slurry input weights includes: calculating the difference between the slurry input weight in one group of slurry input weight groups and the slurry input weight in another group of slurry input weight groups; and determining the slurry weight comparison verification accuracy based on the quotient of this difference and the slurry collection weight difference.

[0012] Optionally, determining whether the slurry application ratio accuracy requirement is met based on the slurry-liquid weight ratio verification accuracy includes: determining that the slurry application ratio accuracy requirement is met when the slurry-liquid weight ratio verification accuracy is within a preset accuracy range.

[0013] Optionally, when it is determined that the slurry application ratio does not meet the slurry application ratio accuracy requirement, an alarm process is performed.

[0014] Optionally, the weighing device weighs the material tank to obtain the weight of the second liquid feed; when the material tank includes a heating device, during the acquisition of multiple sets of liquid feed weight data, the condensed water of the heating device is controlled not to be discharged.

[0015] According to a second aspect of the present disclosure, a device for detecting the application of a liquid for tobacco flavoring and adding is provided, comprising: a data acquisition module for acquiring a plurality of groups of liquid weight data during the process of adding and flavoring tobacco; wherein each group of liquid weight data comprises at least one liquid acquisition data; the liquid acquisition data comprises: a first liquid weight supplied for tobacco flavoring and adding collected by a flow meter of a feeding system, and a second liquid weight remaining for tobacco flavoring and adding collected by a weighing device of the feeding system at the same time; a weight acquisition module for acquiring a plurality of corresponding liquid input weights based on the liquid acquisition data of the plurality of groups of liquid weight data; an accuracy acquisition module for calculating a liquid weight comparison verification accuracy based on the plurality of liquid input weights; and an accuracy judgment module for determining whether a liquid application ratio accuracy requirement is met based on the liquid weight comparison verification accuracy.

[0016] Optionally, the data acquisition module is used to start acquiring the multiple groups of material liquid weight data when it is determined that the measured weight value of the flow meter reaches the material liquid collection inspiration weight value.

[0017] Optionally, the data acquisition module is further configured to determine the liquid collection revelation weight value based on the first liquid application ratio accuracy and the minimum resolution information of the weighing device.

[0018] Optionally, the data acquisition module is used to obtain the next set of slurry weight data when it is determined that the difference between the first collected first slurry weight in a set of slurry weight data and the actual measured weight value of the flow meter is greater than the slurry collected weight difference.

[0019] Optionally, the data acquisition module is further configured to determine the weight difference of the collected slurry according to the second slurry application ratio accuracy and the minimum resolution information of the weighing device.

[0020] Optionally, the weight acquisition module is used to calculate the sum of the first slurry weight and the second slurry weight collected at the same time in each group of slurry weight data to obtain a corresponding group of slurry input weights.

[0021] Optionally, the number of slurry collection data in each group of slurry weight data is the same, and in each group of slurry weight data, the difference between the first slurry weight in one collected slurry collection data and the first slurry weight in the next collected slurry collection data is a preset weight interval difference.

[0022] Optionally, the accuracy acquisition module is used to calculate the difference between the weight of a liquid input in one group of liquid input weight groups and the weight of a liquid input in another group of liquid input weight groups; based on the quotient of this difference and the difference in the liquid collection weight, the accuracy of the liquid weight comparison verification is determined.

[0023] Optionally, the accuracy determination module is used to determine that the accuracy requirement of the material-liquid application ratio is met when the accuracy of the material-liquid weight ratio verification is within a preset accuracy range.

[0024] Optionally, the accuracy determination module is further configured to perform an alarm process when it is determined that the slurry application ratio does not meet the slurry application ratio accuracy requirement.

[0025] Optionally, the weighing device weighs the material tank to obtain the weight of the second material liquid; the data acquisition module is used to control the condensed water of the heating device from being discharged during the acquisition of multiple groups of material liquid weight data when the material tank includes a heating device.

[0026] According to a third aspect of the present disclosure, a device for detecting the application of a tobacco flavoring liquid is provided, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute the method described above based on instructions stored in the memory.

[0027] According to a fourth aspect of the present disclosure, a tobacco filling and flavoring device is provided, comprising: the tobacco filling and flavoring liquid application and detection device as described above.

[0028] According to a fifth aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the instructions are executed by a processor to perform the above method.

[0029] The tobacco flavoring and liquid application detection method, device, tobacco flavoring and liquid application equipment and storage medium disclosed in the present invention can detect the accuracy of the liquid application ratio in the tobacco flavoring and filling production, can promptly determine whether there is an abnormality in the liquid application ratio accuracy, can promptly adjust the liquid application ratio or perform fault detection on the metering device and valve, etc., can effectively monitor the equipment or quality problems of the flavoring and filling process, and effectively ensure the process quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 A schematic flow chart of an embodiment of a method for detecting the application of a tobacco flavoring liquid according to the present disclosure;

[0032] Figure 2 This is a schematic diagram of the working principle of the drum-type feeding and flavoring equipment;

[0033] Figure 3A This is a piping diagram of a feeding system for a drum-type feeding and flavoring equipment;

[0034] Figure 3B This is a piping diagram of another feeding system for drum-type feeding and flavoring equipment;

[0035] Figure 4 It is a calibration characteristic diagram using a mass flow meter and a static scale;

[0036] Figure 5 This is a schematic diagram of a module of an embodiment of a tobacco flavoring and liquid application detection device according to the present disclosure;

[0037] Figure 6 This is a schematic diagram of modules of another embodiment of a tobacco flavoring and liquid application detection device according to the present disclosure. DETAILED DESCRIPTION

[0038] Exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings. For the sake of clarity and conciseness, not all features of the embodiments are described in the specification. However, it should be understood that many implementation-specific settings must be made in the process of implementing the embodiments in order to achieve the developer's specific goals, such as meeting those restrictions related to equipment and services, and these restrictions may vary depending on the implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the contents of this disclosure.

[0039] It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0040] Those skilled in the art will understand that the terms "first" and "second" in the embodiments of the present disclosure are only used to distinguish different steps, devices or modules, and do not represent any specific technical meanings, nor do they indicate a necessary logical order between them.

[0041] It should also be understood that in the embodiments of the present disclosure, “a plurality of” may refer to two or more than two, and “at least one” may refer to one, two, or more than two.

[0042] It should also be understood that any component, data or structure mentioned in the embodiments of the present disclosure can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0043] In addition, the term "and / or" in this disclosure is merely a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this disclosure generally indicates that the related objects are in an "or" relationship.

[0044] It should also be understood that the description of the various embodiments in this disclosure focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced with each other. For the sake of brevity, they will not be described one by one.

[0045] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0046] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0047] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0048] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0049] In addition, in order to avoid obscuring the present disclosure with unnecessary details, only the processing steps and / or device structures that are closely related to at least the solution according to the present disclosure are shown in the drawings, while other details that are not closely related to the present disclosure are omitted. It should also be noted that similar reference numerals and letters in the drawings indicate similar items, and therefore once an item is defined in one drawing, it does not need to be discussed again for subsequent drawings.

[0050] Figure 1 FIG. 1 is a flow chart of an embodiment of a method for detecting the application of a tobacco flavoring liquid according to the present disclosure, as shown in FIG. Figure 1 As shown:

[0051] Step 101 : obtaining multiple groups of feed and liquid weight data during the process of adding feed and flavoring to tobacco.

[0052] In one embodiment, the number of liquid weight data sets may be two, three, or the like; each set of liquid weight data includes one or more liquid collection data sets, the liquid collection data sets including: the weight of a first liquid supplied to the tobacco flavoring material as collected by a flow meter of the feeding system, and the weight of a second liquid remaining in the tobacco flavoring material as collected by a weighing device of the feeding system at the same time. The flow meter may be of various types, such as a mass flow meter; and the weighing device may be of various types, such as a static scale.

[0053] Adding tobacco to tobacco refers to adding a water-soluble or suspended liquid material to tobacco at a specified dosage; flavoring tobacco refers to adding tobacco flavoring to tobacco. The liquid material disclosed herein can be a water-soluble or suspended liquid material for tobacco adding, or a tobacco flavoring liquid material for tobacco flavoring. The liquid material can also be a mixture of a water-soluble or suspended liquid material for tobacco adding and a tobacco flavoring liquid material for tobacco flavoring.

[0054] Cigarette flavoring equipment precisely controls the flow rate of liquid feed, ensuring that the liquid feed is evenly sprayed onto the tobacco material according to the required proportions in the process recipe. The purpose of tobacco flavoring is to reduce smoke irritation, soften the smoke, improve the aftertaste, and enhance the physical properties of the tobacco. Flavoring imparts a pleasant, pleasant aroma to tobacco products, giving them a distinctive smoke flavor.

[0055] The working principle of the drum-type feeding and flavoring equipment is as follows Figure 2 As shown, tobacco leaves are fed into the drum via a vibrating conveyor from upstream equipment. The drum is driven by a transmission device to rotate. Due to the axial inclination of the drum and the guiding action of the material rod inside the drum, the tobacco leaves can flow loosely and evenly toward the discharge port. As the tobacco leaves tumble forward in the drum, they fully contact the liquid sprayed by the dual-medium nozzles and continuously absorb heat, meeting the feeding process requirements.

[0056] The feeding system of tobacco feeding and flavoring equipment is used to deliver feed liquid to the dual-media nozzle of the feeding equipment, such as Figure 3A As shown, the feeding system includes: feed valve V1, discharge valve V2, residual material recovery valve V3, drain valve V4, feeding pump bypass valve V5, sampling valve V6, nozzle cleaning valve V7, feeding / return valve V8, atomizing air pressure valve V9, cleaning spray valve V10, tank cleaning valve V11, steam heating valve V12, condensate discharge valve V15, steam trap V13, check valve V14, tank T1, stirring motor M1, temperature sensor W1, static scale JT1, filter F1, gear feeding pump P1, mass flow meter Z1, dual-media nozzle J1, and rotating nozzle J2.

[0057] Tank T1 is placed on static scale JT1. All pipes connected to tank T1 are connected to tank T1 with soft rubber tubing, avoiding hard connections. The pipes exert minimal stress on tank T1 and do not affect the weighing of tank T1. The liquid weight detected by static scale JT1 is used to display the liquid inventory and participate in system control. Tank T1 is wrapped in a sealed interlayer. Steam is introduced into the interlayer to heat or insulate the liquid in the tank, ensuring that the liquid temperature meets process requirements.

[0058] Before production, static scale JT1 is tare-ed, feed valve V1 is opened, and the liquid feed enters tank T1. When static scale JT1 detects that the liquid feed has reached a certain set weight, the stirring motor is activated to stir the liquid to ensure uniformity. Simultaneously, temperature sensor W1 detects the liquid feed temperature. If the temperature does not reach the process setting, steam heating valve V12 is opened in a pulsed manner, allowing steam to enter the interlayer and heat the liquid feed. Once the temperature reaches the process setting, steam heating valve V12 stops operating, and condensate in the interlayer is discharged through steam trap V14 and check valve V5.

[0059] During pre-filling, discharge valve V2 opens, pump P1 starts, and the liquid and flavoring material flow out of tank T1, passing through discharge valve V2, filter F1, feeding pump P1, flowmeter M1, sampling valve V6, nozzle cleaning valve V7, and feeding valve V8, returning to tank T1. The feeding pipeline is pre-filled with liquid. During production, atomizing air valve V9 and feeding / return valve V8 open, allowing the liquid to enter dual-medium nozzle J1 through feeding valve V8. Compressed air atomizes the liquid into small particles and sprays them onto the material, achieving the purpose of adding both material and flavor.

[0060] The control system, PLC, calculates the set feed rate based on the production line material flow and the set application ratio. The PLC, feed pump P1, and mass flowmeter Z1 form a PID closed-loop system to control the feed rate to the set PLC-calculated feed rate. During production, if the static scale JT1 detects that the feed liquid weight falls below the lower limit, the feed system stops and issues an empty material alarm. After production is complete, the remaining feed liquid in the barrel is recovered, and the barrel and feed lines are cleaned. The flavoring system of the cigarette dosing equipment delivers feed liquid to the dual-medium nozzles of the flavoring equipment.

[0061] Figure 3B This is a piping diagram of another feeding system for drum-type feeding and flavoring equipment. If the feed liquid is tobacco flavoring liquid used to flavor tobacco, the tobacco flavoring liquid uses alcohol as a solvent and does not require heating or insulation. Therefore, Figure 3B The feeding system ratio Figure 3A The feeding system reduces the heating and heat preservation system. Figure 3B Other components and working processes of the feeding system Figure 3A The feeding system and working process are the same.

[0062] In one embodiment, an electronic belt scale is installed upstream of the drum-type feeding and flavoring device. Material passes through the scale and enters a vibrating trough conveyor, which then feeds the drum-type feeding and flavoring device. The electronic belt scale outputs the instantaneous material flow rate. This is then delayed by a stack to simulate the time it takes for the material to reach the nozzle. The instantaneous material flow rate after this delay is multiplied by the set feeding or flavoring ratio set in the process to obtain the set instantaneous feeding and flavoring flow rate.

[0063] For example, if the instantaneous material flow rate is 8,000 kg / s and the addition or flavoring ratio is 3%, the liquid flow rate is 240 kg / s. The set liquid flow rate is input into the PID controller, whose output frequency controls the motor that drives the feed pump. A mass flow meter detects the real-time liquid flow rate and feeds it back to the PID controller. The PID controller compares the real-time liquid flow rate with the set liquid flow rate, forming a closed-loop control loop to ensure accurate and stable flow rates.

[0064] The dosing and flavoring process typically requires a tolerance of less than 0.5% in the feed-liquid ratio. This means the cumulative weight recorded by the mass flow meter divided by the cumulative weight recorded by the electronic belt scale (the feed-liquid weight ratio calibration accuracy) must be within ±0.5%. Mass flow meter readings can sometimes exhibit deviations, which can affect the accuracy of the feed-liquid ratio control.

[0065] The tobacco feeding and flavoring pipeline system has many valves, which are frequently switched on and off. The valve seals are easily worn and leaked, which affects the control of the feed-liquid ratio accuracy. For example, Figure 3A As shown, the drain valve V4, the feeding bypass valve V5, the nozzle cleaning valve V7, the feeding / returning valve V8, and the tank cleaning valve V11 are leaking. The leakage occurs in the pipeline or the barrel and is not easy to find; the residual material recovery valve V3 and the sampling valve V6 are leaking, and the liquid will appear on the ground, which is easy to find; the feed valve V1 has liquid in the pipeline only when the tank is feeding. Normally, the pipe is empty and there is no possibility of leakage. Leakage of drain valve V4, nozzle cleaning valve V7, and tank cleaning valve V11 has little effect on the accuracy of the application ratio; leakage of drain valve V4 only causes loss of liquid, and leakage of nozzle cleaning valve V7 will add more water, which will not affect the application ratio; leakage of tank cleaning valve V11 will dilute the concentration of the liquid, which has little effect on the accuracy of the application ratio; leakage of feeding bypass valve V5 and feeding / returning valve V8 directly affects the applied liquid and has a great impact on the application ratio, especially leakage of feeding / returning valve V8 is a three-way valve, and its sealing strength is not as good as that of a two-way stop valve in mechanical structure, making it the valve most prone to leakage in the pipeline.

[0066] Step 102 : Based on the liquid collection data of the multiple groups of liquid weight data, obtain the corresponding multiple groups of liquid input weights.

[0067] Step 103, calculating the weight comparison and calibration accuracy of the material-liquid ratio according to the weight of the multiple groups of material-liquid inputs.

[0068] Step 104 : Based on the calibration accuracy of the material-liquid weight ratio, determine whether the material-liquid application ratio accuracy requirement is met.

[0069] In one embodiment, the liquid collection weight value is determined based on the first liquid application ratio accuracy and the minimum resolution information of the weighing device. When it is determined that the measured weight value of the flow meter reaches the liquid collection weight value, multiple sets of liquid weight data are obtained.

[0070] For example, if the flowmeter's display resolution is 5 decimal places, and the scale's resolution is 2 decimal places, the scale's minimum resolution (minimum resolution information) is 0.01 kg. The first liquid application ratio accuracy can be set to 0.25%, 0.3%, and so on. If the first liquid application ratio accuracy is 0.25%, the sampled liquid weight is 0.01 kg divided by 0.25%, which equals 4 kg.

[0071] like Figure 4 As shown, over time, the weight recorded by the static scale (weighing device) decreases, while the weight recorded by the mass flowmeter increases. The weight loss recorded by the static scale equals the weight gain recorded by the flowmeter. The calibration deviation percentage indicates the calibration accuracy of the liquid-to-material weight ratio. At the beginning of flavoring and adding, the feed / return valve switches to V8 to apply liquid to the nozzle. The feed / return valve switches to V8 to the pre-filled pipe of the material tank, and residual liquid flows back into the tank, affecting the stability of the test. The calibration deviation percentage is relatively high. When the weight recorded by the flowmeter exceeds 4 kg, the calibration deviation percentage is less than 0.5%.

[0072] In one embodiment, a difference in the weight of the collected liquid is determined based on the accuracy of the second liquid application ratio and the minimum resolution information of the weighing device. If the difference between the first collected first liquid weight in a set of liquid weight data and the actual weight value measured by the flowmeter is determined to be greater than the difference in the weight of the collected liquid, the next set of liquid weight data is acquired.

[0073] For example, the minimum resolution (minimum resolution information) of the weighing device is 0.01 kg, and the second liquid application ratio accuracy can be set to 0.1%. If the second liquid application ratio accuracy is 0.1%, the liquid collection weight difference is determined to be 0.01 kg divided by 0.1%, which is equal to 10 kg, that is, the liquid collection weight difference is 10 kg. In the case where the difference between the first liquid weight collected in a set of liquid weight data and the actual weight value measured by the flow meter is greater than 10 kg, the next set of liquid weight data is obtained, that is, the difference between the first liquid weight collected in a set of liquid weight data and the first liquid weight collected in the next set of liquid weight data is greater than 10 kg, which can ensure that the result of the liquid weight comparison verification accuracy is accurate; if the difference between the first liquid weight collected in a set of liquid weight data and the first liquid weight collected in the next set of liquid weight data is less than 10 kg, then the error in the liquid weight comparison verification accuracy is reflected in the weight change of the static scale, which may be less than 0.01 kg.

[0074] In one embodiment, the number of liquid collection data in each set of liquid weight data is the same, and in each set of liquid weight data, the difference between the first liquid weight in one set of liquid collection data and the first liquid weight in the next set of liquid collection data is a preset weight interval difference. For example, the multiple sets of liquid weight data can be two sets of data, and the number of liquid collection data in each set of liquid weight data can be 4, 5, 6, etc.; the weight interval difference can be 0.5 kg, etc. The sum of the first liquid weight and the second liquid weight collected at the same time in each set of liquid weight data is calculated to obtain the corresponding set of liquid input weights.

[0075] like Figure 3A As shown, during the production process, the increased weight collected by the mass flow meter Z1 is equal to the reduced weight collected by the static scale JT1. The weight of the liquid input before production is M. Theoretically, at any time during the production process, the sum of the weight collected by the mass flow meter Z1 and the weight collected by the static scale JT1 is equal to M. By comparing the weight M at different times, the mass flow meter and the static scale can be compared with each other to determine whether the applied proportional accuracy meets the requirements.

[0076] In one embodiment, the difference between the weight of one liquid input in one set of liquid input weight groups and the weight of the liquid input in another set of liquid input weight groups is calculated, and the liquid weight comparison verification accuracy is determined based on the quotient of this difference and the difference in the liquid collection weight. If the liquid weight comparison verification accuracy is within a preset accuracy range, it is determined that the liquid application ratio accuracy requirement is met; if the liquid weight comparison verification accuracy is not within the preset accuracy range, it is determined that the liquid application ratio accuracy requirement is not met.

[0077] The weighing device is easily disturbed and will touch the tank when manually checking the liquid in the tank, affecting the accuracy of the data collected by the weighing device. In one embodiment, during the process of adding material and flavoring tobacco, two sets of liquid weight data are obtained, and each set of liquid weight data includes four liquid collection data. Based on the first liquid application ratio accuracy of 0.25% and the minimum resolution of the weighing device of 0.01Kg, the liquid collection weight value is determined to be 4Kg; based on the second liquid application ratio accuracy of 0.1% and the minimum resolution information of the weighing device of 0.01Kg, the liquid collection weight difference is determined to be 10Kg. The weight interval difference is set to 0.5Kg.

[0078] When it is determined that the measured weight value of the flow meter reaches 4Kg, the first group of feed liquid weight data is obtained. The first group of feed liquid weight data includes four feed liquid collection data. The four first feed liquid weights in the four feed liquid collection data (the weight of the mass flow meter is read every 0.5Kg increase) are 4Kg, 4.5Kg, 5Kg and 5.5Kg respectively; the four second feed liquid weights in the four feed liquid collection data are the four second feed liquid weights collected by the weighing device at the moment when the first feed liquid weight is 4Kg, 4.5Kg, 5Kg and 5.5Kg respectively, which are A1Kg, A2Kg, A3Kg and A4Kg respectively. Calculate the sum of the first slurry weight and the second slurry weight collected at the same time in this group of slurry weight data to obtain a corresponding group of slurry input weights, that is, this group of slurry input weights includes: M11 (4Kg + A1Kg), M12 (4.5Kg + A2Kg), M13 (5Kg + A3Kg), and M14 (5.5Kg + A4Kg).

[0079] When it is determined that the difference between the first collected first liquid weight (4Kg) in the first set of liquid weight data and the actual measured weight value of the flow meter is greater than 10Kg, that is, when the actual measured weight value of the flow meter is 14Kg, the second set of liquid weight data is obtained. The second set of liquid weight data includes four liquid collection data, and the four first liquid weights in the four liquid collection data (the weight of the mass flow meter is read with each increase of 0.5Kg) are 14Kg, 14.5Kg, 15Kg and 15.5Kg respectively; the four second liquid weights in the four liquid collection data are the four second liquid weights collected by the weighing device at the moment when the first liquid weights are 14Kg, 14.5Kg, 15Kg and 15.5Kg respectively, which are B1Kg, B2Kg, B3Kg and B4Kg respectively. Calculate the sum of the first feed liquid weight and the second feed liquid weight collected at the same time in this group of feed liquid weight data to obtain a corresponding group of feed liquid input weights, that is, this group of feed liquid input weights includes: M21 (14Kg + B1Kg), M22 (14.5Kg + B2Kg), M23 (15Kg + B3Kg), and M24 (15.5Kg + B4Kg).

[0080] Calculate the difference between one or more of the liquid input weights M11 (4Kg + A1Kg), M12 (4.5Kg + A2Kg), M13 (5Kg + A3Kg), M14 (5.5Kg + A4Kg) in one group of liquid input weight groups and one or more of the liquid input weights M21 (14Kg + B1Kg), M22 (14.5Kg + B2Kg), M23 (15Kg + B3Kg), M24 (15.5Kg + B4Kg) in another group of liquid input weight groups, and determine the accuracy of the liquid weight comparison verification based on the quotient of this difference and the difference in liquid collection weight.

[0081] For example, the weight ratio of the feed to the liquid

[0082] Here, i can be 1, 2, 3 or 4.

[0083] The accuracy range can be set to ±0.5%, etc. For example, the accuracy range is ±0.5%. If, among the four slurry-liquid weight ratio verification accuracies calculated by formula (1-1), at least one slurry-liquid weight ratio verification accuracy is within ±0.5%, it is determined that the slurry-liquid application ratio accuracy requirement is met. If none of the four slurry-liquid weight ratio verification accuracies calculated by formula (1-1) are within ±0.5%, it is determined that the slurry-liquid application ratio accuracy requirement is not met. In the case where the slurry-liquid application ratio accuracy requirement is not met, it is determined that the application ratio accuracy is abnormal, which may be due to an abnormality in the mass flow meter, static scale, or valve leakage, and further elimination of factors affecting the application ratio accuracy is required. In the case where it is determined that the slurry-liquid application ratio does not meet the slurry-liquid application ratio accuracy requirement, an alarm process can be performed, and the alarm process can be an audible and visual alarm, display of abnormal indication information, and other processing.

[0084] In one embodiment, the weighing device weighs the tank to obtain the weight of the second liquid feed; when the tank includes a heating device, the condensed water of the heating device is controlled not to be discharged during the acquisition of multiple sets of liquid feed weight data. The heating device can be a variety of heating devices, for example, Figure 3A A device for heating the material tank by steam.

[0085] For example, Figure 3AAs shown, the temperature of the feed liquid must reach the temperature range of ±5 degrees of the process specified set value before production. The feed liquid temperature is usually heated to close to the upper limit before production. Under normal circumstances, the feed liquid temperature does not need to be heated. However, in the case of production shutdown, the feed liquid is stored in the feed tank for a long time, and the feed liquid temperature is lower than the lower limit. It is necessary to open the steam heating valve V12 for pulse heating. The steam in the feed tank interlayer will condense into condensed water and be discharged through the steam trap V14, affecting the weight collected by the static scale. Therefore, a new condensed water discharge valve V15 is added at the condensed water outlet of the feed tank interlayer. When the mass flow meter and the static scale are compared and calibrated with each other (i.e., during the acquisition of multiple groups of feed liquid weight data), the stop valve V15 is closed so that the condensed water remains in the feed tank and does not affect the static scale weight. Using the feed liquid application detection method of tobacco flavoring disclosed in the present invention, the feed liquid application detection is performed on the feed and flavoring production process of each batch of tobacco, and the latter part of the feed and flavoring production process of this batch of tobacco is not detected.

[0086] The disclosed method for detecting liquid application for tobacco flavoring and adding can detect the accuracy of liquid application ratio in tobacco flavoring and adding production, can promptly determine whether there is any abnormality in the accuracy of liquid application ratio, can promptly adjust the liquid application ratio or perform fault detection on metering devices and valves, etc., can effectively monitor equipment or quality problems in the flavoring and adding process, make tobacco flavoring and adding production more stable, and effectively ensure the process quality of the product.

[0087] In one embodiment, Figure 5 As shown, the present disclosure provides a liquid application detection device 50 for tobacco flavoring and adding, comprising a data acquisition module 51, a weight acquisition module 52, an accuracy acquisition module 53, and an accuracy determination module 54. The data acquisition module 51 acquires multiple sets of liquid weight data during the tobacco flavoring and adding process; each set of liquid weight data includes at least one liquid collection data set; the liquid collection data set includes: the weight of a first liquid supplied for tobacco flavoring, as measured by a flow meter of the feeding system; and the weight of a second liquid remaining for tobacco flavoring, as measured by a weighing device of the feeding system at the same time.

[0088] The weight acquisition module 52 obtains the corresponding weights of the multiple groups of liquid inputs based on the liquid collection data. The accuracy acquisition module 53 calculates the liquid weight comparison verification accuracy based on the multiple groups of liquid input weights. The accuracy determination module 54 determines whether the liquid application ratio accuracy requirements are met based on the liquid weight comparison verification accuracy.

[0089] In one embodiment, the data acquisition module 51 determines a liquid collection weight value based on the first liquid application ratio accuracy and the minimum resolution information of the weighing device. Upon determining that the flow meter's measured weight value reaches the liquid collection weight value, the data acquisition module 51 begins acquiring multiple sets of liquid weight data.

[0090] The data acquisition module 51 determines the difference in the collected weight of the liquid material based on the second liquid application ratio accuracy and the minimum resolution information of the weighing device. If the data acquisition module 51 determines that the difference between the first collected first liquid weight in a set of liquid material weight data and the actual weight value measured by the flow meter is greater than the difference in the collected weight of the liquid material, it obtains the next set of liquid material weight data.

[0091] The weighing device weighs the material tank to obtain the weight of the second liquid feed. When the material tank includes a heating device, the data acquisition module 51 controls the condensed water of the heating device not to be discharged during the acquisition of multiple sets of liquid feed weight data.

[0092] In one embodiment, the weight obtaining module 52 calculates the sum of the first liquid weight and the second liquid weight collected at the same time in each set of liquid weight data to obtain a corresponding set of liquid input weights. The number of liquid collection data in each set of liquid weight data is the same, and in each set of liquid weight data, the difference between the first liquid weight in one collected liquid collection data and the first liquid weight in the next collected liquid collection data is a preset weight interval difference.

[0093] The accuracy acquisition module 53 calculates the difference between one liquid input weight in one liquid input weight group and the liquid input weight in another liquid input weight group, and determines the liquid weight comparison verification accuracy based on the quotient of this difference and the liquid collection weight difference.

[0094] The accuracy determination module 54 determines that the liquid application ratio accuracy requirement is met when the liquid weight ratio verification accuracy is within a preset accuracy range. If the accuracy determination module 54 determines that the liquid application ratio does not meet the liquid application ratio accuracy requirement, it issues an alarm.

[0095] In one embodiment, Figure 6 As shown, the present disclosure provides a device for detecting the application of a liquid for tobacco flavoring or adding a flavoring agent, which may include a memory 62, a processor 61, a communication interface 63, and a bus 64. The memory 62 is used to store instructions, and the processor 61 is coupled to the memory 62. The processor 61 is configured to execute the method for detecting the application of a liquid for tobacco flavoring or adding a flavoring agent in any of the above-mentioned embodiments based on the instructions stored in the memory 62.

[0096] The memory 62 may be a high-speed RAM memory, a non-volatile memory, or a memory array. The memory 62 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules. The processor 61 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the tobacco flavoring and liquid application detection method disclosed herein.

[0097] In one embodiment, the present disclosure provides a tobacco flavoring device, comprising: a tobacco flavoring liquid application and detection device as described in any of the above embodiments. The tobacco flavoring device can be a variety of devices, such as a drum-type tobacco flavoring device.

[0098] In one embodiment, the present disclosure provides a computer-readable storage medium storing computer instructions, which are used by a processor to execute the method in any embodiment.

[0099] The tobacco feeding and flavoring liquid application detection method, device, tobacco feeding and flavoring equipment and storage medium in the above-mentioned embodiments can perform liquid application ratio accuracy detection on tobacco flavoring and feeding production, can promptly determine whether there is any abnormality in the liquid application ratio accuracy, can promptly adjust the liquid application ratio or perform fault detection on the metering device and valve, etc., can effectively monitor the equipment or quality problems of the feeding and flavoring process, make the tobacco feeding and flavoring production more stable, and effectively ensure the process quality of the product.

[0100] Many ways can be used to implement the method and system of the present disclosure. For example, the method and system of the present disclosure can be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above, unless otherwise specifically stated. In addition, in some embodiments, the present disclosure can also be implemented as a program recorded in a recording medium, which includes machine-readable instructions for implementing the method according to the present disclosure. Therefore, the present disclosure also covers recording media that store programs for executing the method according to the present disclosure.

[0101] The description of the present disclosure is provided for purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the disclosed form. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present disclosure and to enable those skilled in the art to understand the present disclosure and design various embodiments with various modifications suitable for specific applications.

Claims

1. A method for detecting the application of a tobacco flavoring liquid, comprising: In the process of adding material and flavoring tobacco, multiple groups of material and liquid weight data are obtained; Wherein, a liquid collection inspiration weight value is determined based on the quotient of the minimum resolution information of the weighing device and the first liquid application ratio accuracy; when it is determined that the actual measured weight value of the flow meter reaches the liquid collection inspiration weight value, the multiple groups of liquid weight data are started to be acquired; each group of liquid weight data includes at least one liquid collection data; the liquid collection data includes: the weight of the first liquid supplied for the tobacco flavoring material collected by the flow meter of the feeding system, and the weight of the second liquid remaining for the tobacco flavoring material collected by the weighing device of the feeding system at the same time; when it is determined that the difference between the first collected first liquid weight in a group of liquid weight data and the actual measured weight value of the flow meter is greater than the liquid collection weight difference, the next group of liquid weight data is acquired; Based on the liquid collection data of the plurality of liquid weight data, the corresponding plurality of liquid input weights are obtained; Calculate the weight comparison and calibration accuracy of the material-liquid ratio according to the weight of the multiple groups of material-liquid inputs; wherein, the liquid collection weight difference is determined based on the quotient of the minimum resolution information of the weighing device and the second liquid application ratio accuracy; the difference between the liquid input weight of one liquid input weight group and the liquid input weight of another liquid input weight group is calculated, and the liquid weight comparison verification accuracy is determined based on the quotient of the difference and the liquid collection weight difference; Based on the calibration accuracy of the material-liquid weight ratio, it is determined whether the material-liquid application ratio accuracy requirement is met.

2. The method according to claim 1, wherein the collecting data of the feed liquid based on the weight data of the multiple groups of feed liquids to obtain the corresponding input weights of the multiple groups of feed liquids comprises: The sum of the first feed liquid weight and the second feed liquid weight collected at the same time in each group of feed liquid weight data is calculated to obtain a corresponding group of feed liquid input weights.

3. The method according to claim 2, wherein: The number of liquid collection data in each group of liquid weight data is the same, and in each group of liquid weight data, the difference between the first liquid weight in one collected liquid collection data and the first liquid weight in the next collected liquid collection data is a preset weight interval difference.

4. The method according to any one of claims 1 to 3, wherein determining whether the accuracy requirement of the feed-liquid application ratio is met based on the verification accuracy of the feed-liquid weight ratio comprises: When the calibration accuracy of the material-liquid weight ratio is within a preset accuracy range, it is determined that the material-liquid application ratio accuracy requirement is met.

5. The method of claim 4, further comprising: When it is determined that the material-liquid application ratio does not meet the material-liquid application ratio accuracy requirement, an alarm process is performed.

6. The method of claim 1, wherein: The weighing device weighs the material tank to obtain the weight of the second material liquid; In the case where the material tank includes a heating device, during the acquisition of multiple sets of material liquid weight data, the condensed water of the heating device is controlled not to be discharged.

7. A device for detecting the application of a liquid for tobacco flavoring and adding flavor, comprising: The data acquisition module is used to obtain multiple groups of feed and liquid weight data during the process of adding feed and flavoring tobacco; The data acquisition module is configured to determine a liquid collection revelation weight value based on a quotient of minimum resolution information of the weighing device and a first liquid application ratio accuracy; and to start acquiring the plurality of sets of liquid weight data when it is determined that the actual weight value measured by the flow meter reaches the liquid collection revelation weight value; Each set of liquid weight data includes at least one liquid collection data; the liquid collection data includes: the weight of a first liquid supplied for tobacco flavoring collected by a flow meter of the feeding system, and the weight of a second liquid remaining for tobacco flavoring collected at the same time by a weighing device of the feeding system; The data acquisition module is configured to acquire the next set of slurry weight data when it is determined that the difference between the first slurry weight collected in a set of slurry weight data and the actual weight value measured by the flow meter is greater than the slurry weight difference; A weight acquisition module, configured to acquire the corresponding input weights of the multiple groups of feed liquids based on the feed liquid collection data of the multiple groups of feed liquid weight data; An accuracy acquisition module, configured to calculate the accuracy of the material-liquid weight comparison verification based on the weights of the multiple groups of material-liquid inputs; The data acquisition module is further configured to determine the weight difference of the collected liquid according to the quotient of the minimum resolution information of the weighing device and the second liquid application ratio accuracy; The accuracy acquisition module is used to calculate the difference between the weight of a liquid input in one group of liquid input weight groups and the weight of a liquid input in another group of liquid input weight groups; based on the quotient of the difference and the difference in the liquid collection weight, determine the accuracy of the liquid weight comparison verification; The accuracy judgment module is used to determine whether the accuracy requirement of the material-liquid application ratio is met based on the calibration accuracy of the material-liquid weight ratio.

8. The device according to claim 7, wherein The weight acquisition module is used to calculate the sum of the first feed liquid weight and the second feed liquid weight collected at the same time in each group of feed liquid weight data to obtain the corresponding group of feed liquid input weight.

9. The device according to claim 8, wherein The number of liquid collection data in each group of liquid weight data is the same, and in each group of liquid weight data, the difference between the first liquid weight in one collected liquid collection data and the first liquid weight in the next collected liquid collection data is a preset weight interval difference.

10. The device according to any one of claims 7 to 9, wherein: The accuracy judgment module is used to determine that the accuracy requirement of the material-liquid application ratio is met when the accuracy of the material-liquid weight ratio verification is within a preset accuracy range.

11. The device according to claim 10, wherein The accuracy determination module is further configured to perform an alarm process when it is determined that the material-liquid application ratio does not meet the material-liquid application ratio accuracy requirement.

12. The device according to claim 7, wherein The weighing device weighs the material tank to obtain the weight of the second material liquid; The data acquisition module is used to control the condensed water of the heating device not to be discharged during the acquisition of multiple groups of material liquid weight data when the material tank includes a heating device.

13. A device for detecting the application of a liquid for tobacco flavoring and adding flavor, comprising: Memory; and a processor coupled to the memory, wherein the processor is configured to execute the method according to any one of claims 1 to 6 based on instructions stored in the memory.

14. A tobacco flavoring device, comprising: A tobacco flavoring and liquid application detection device according to any one of claims 7 to 13. 15 . A computer-readable storage medium storing computer instructions, wherein the instructions are executed by a processor to execute the method according to claim 1 .

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